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Finding the Fourth Proportional to 60,990.59, 84,205.22 and 39,195.71

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Solution

The fourth proportional to 60,990.59, 84,205.22 and 39,195.71 is: 54,114.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,990.59 : 84,205.22 = 39,195.71 : x
  2. Step 2: Convert to fraction form
    60,990.59/84,205.22 = 39,195.71/x
  3. Step 3: Cross multiply
    60,990.59x = 84,205.22 × 39,195.71
  4. Step 4: Simplify right side
    60,990.59x = 3,300,483,060.57
  5. Step 5: Solve for x
    x = 3,300,483,060.57/60,990.59
  6. Step 6: Final answer
    x = 54,114.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.